Looking for a snowdrift tutorial

I actually figured it out. Here are before and after images. How is it done?

The original image was taken with an iPhone, and a filter was applied using the phone app Prisma. The "before" image is that filtered Priwsma result.

1) After opening the image in Photoshop, create a new layer above the background layer.

2) Using the pencil tool, with the new layer selected, paint along the part of the image you want the snow to appear built up on.

3) With the new layer selected, open the FX tool in the lower right, select Bevel and Emboss.

4) I applied the settings until they looked the way I wanted

     Structure: Style: Embox, Technique: Smooth, Depth: 199%, Direction: Up, Size: 65px, Soften: 7px

     Shading: Angle: 130 degrees, uncheck Use Global Light, Altitude: 30 degrees, Gloss Contour: Cove -      Shallow, Highlight Mode: Normal, white, Opacity: 13%, Shadow Mode: Multiply, black, Opacity: 44%

5) Select Contour below Bevel and Emboss. Settings - Contour: Gausian, check Anti-Aliased, Range: 100%

6) Select Texture. Choose a pattern that gives you a texture you like. I used Pastel Paper. Scale: 99%, Depth: +100%, uncheck Invert, Check Link with Layer

7) Because the original image is sepia toned, the white snow looked unnatural, so I applied a color overlay,      #f6dfc5. Blend Mode: Normal, Opacity: 100%.

I created the falling snow using the tutorial at Photoshop Snow Effect - Add Falling Snow To A Winter Photo

Before

After